How to say in Czech: He needs to be alone.

English
needs to be alone.
Czech
Potřebuje být sám.
This is something I need to do alone.
He is used to living alone.
He doesn’t want to go alone.
He doesn’t want to go there alone.
He had to do everything alone.
He is alone.
He is alone here.
He is not alone.
He is not alone anymore.
He is not alone here.

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